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参数资料
| 型号： | ADE7752BARWZ-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 16/24页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METERING 3PHASE 24SOIC |
| 产品变化通告： | Product Discontinuance 27/Oct/2011 |
| 标准包装： | 1,000 |
| 输入阻抗： | 590 千欧 |
| 测量误差： | 0.1% |
| 电压 - 高输入/输出： | 2.4V |
| 电压 - 低输入/输出： | 0.8V |
| 电流 - 电源： | 8.5mA |
| 电源电压： | 4.75 V ~ 5.25 V |
| 测量仪表类型： | 3 相 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC W |
| 包装： | 带卷 (TR) |
| 配用： | EVAL-ADE7752AEBZ-ND - BOARD EVALUATION FOR ADE7752A |
ADE7752B
POWER SUPPLY MONITOR
The ADE7752B contains an on-chip power supply monitor. The
power supply (V DD ) is monitored continuously. At power-up,
when the supply is less than 4 V ± 2% and V REF is less than 1.9 V
(typical), the outputs of the ADE7752B are inactive and the data
path is held in reset. Once V DD is greater than 4 V ± 2% and
V REF is greater than 1.9 V (typical), the chip is active and energy
accumulation begins. At power-down, when V DD falls below 4 V
or V REF falls below 1.9 V (typical), the data path is again held in
reset. This implementation ensures correct device operation at
power-up and at power-down. The power supply monitor has
built-in hysteresis and filtering. This gives a high degree of
immunity to false triggering due to noisy supplies.
The power supply and decoupling for the part should be such
5V
4V
2.4V
1.9V
0V
INTERNAL
RESET
V DD
V REF
INACTIVE ACTIVE INACTIVE
Figure 19. On-Chip Power Supply Monitor
that the ripple at V DD does not exceed ±5% as specified for
normal operation.
Rev. 0 | Page 16 of 24
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